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Data send to IIC-board with PCF8574a IC Data comming from analog-value Pin A0 = PA_0 Nucleo-board you see a 8bit light strip as a result
Testboard IIC with different ICs like PCF8574a PCF8591 etc:
Download Programmbeschreibung:
/media/uploads/schlaumaier54/led_band8bitiic_analog_ein.pdf
Neumaier 2018